First, you need to sign-up with Google. Read it's program policy carefully, not just tick the box that you agree with it, but, really read it. In this way, you can prevent being banned from Google.
Once you're signed up and have read by heart its policies, you're now ready for the next step.
Check your website. You need to have a content that complies to Google Adsense's policy. Also, you need to check if your website have a HTML page where you can paste your adsense code. Some website, like Hubpages, already post adsense automatically on your hub. Blog have tools where you can use to post adsense on it, you just have to know where to place the ads on your webpage.
Now, after knowing your tools within your webpage and you just need the Adsense code to paste in your HTML page, you can go to Google Adsense and log in.
In Google Adsense page, you'll see four tabs -
Reports, AdSense Setup, My Account, Resources.Click on Adsense Setup tab, then go to Get Ads. Here, you'll see three choices - AdSense for Content, AdSense for Search, and Adsense for Feeds. Let's go to the easiest and most popular Adsense product - the AdSense for Content.
On this page, you'll have to choose your Ad type, if you want it to be like an Ad unit or a link unit. Let's choose the most effective one - the Ad unit, then click on Continue.
Now, you have to choose the format you want and the colors. 250 x 250 square is my favorite format. For the color, it needs to blend with your webpage. This is important so that you can create an impression that what you're showing is not a mere advertisement, but something that the reader can check out because it's part or related to your topic. You can preview your unit to check your settings before clicking on continue.
After choosing your format and color, you can assign a channel to track the performance of your advertisement. This is optional. Just click on the "Learn more..." link on that page to get further information about channels. Once, you're done, click continue.
Then, you can name your Adsense unit and submit to get the code. All you have to do is copy that code and paste it in the HTML of your website. To look for your HTML, you can either check if you have a HTML editor or at the top page of your web browser, look for View > Source > then it will give you a notepad with the HTML codes on it. Just paste the code where you want it to appear in your website.
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